A thin line has developed on the screen after 4 years of dependable use

My name is robert Zielinski (zski12000@yahoo.com) my wife Eunjung Kim Zielinski bought this flat screen in busan korea where we live four years later the screen has developed a thin line that crosses.75 perscent to of the screen near the bottom is the screen burning out

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Usually the case with this issue is the LCD panel itself. After a certain long period of time, some LCD panels just bug out and stop working. ( not sure why, possibly the way they were assembled and manufactured. For instance the LCD Panel has 8 connectors ((top)) and 3 connectors ((left)) (((Depends on model)))that attach to the main board of the LCD Panel, and on many occasions the thin lines wear and cut and therefore loosing part of your screen. If i explain further how it works i can write you a good explanation, just message me. That is the issue or the Cable connector from the Video Card to the LCD Panel is faulty. Try replacing that or the line will stay there for a long while then eventually your LCD display will begin to show more lines and eventualy Nebula itself. ( unusable )

You can also try repairing the LCD, in some rare cases the only problem when the line shows up is because of the video genesis card inside the FPD. try swapping that out with a known good one and perhaps that will work otherwise eventually the monitor will begin to stop working over time.

It is the problem of monitor pcb in vertical section.check vertical ic for dry soldring. Resolder the ic if problem still on then change ic or check components related ith it. check continuity of vertical deflection coil.
Hope this be of initial help/idea. Pls post back as requested, how things turned up or should you need additional information.
Good luck and kind regards.
Thank you for using FIXYA.

Sounds like an inverter problem. If the power supply is internal replace the capacitors coming out of the voltage regulators. These are usually 1000mf and/or 470mf. If that doesn't do the trick look up the numbers on the 8-pin chips that drive the secondary transformers on the inverter to see if they are getting the right voltages.Good Luck!

1.
I turn on the monitor, I hear a 'cracklin' sound Reply: In a CRT Monitor there is a component called EHT which generates High voltage which is connected to the anode of the CRT, If there is any leakage due to moisture can cause this crackiling sound, You need to clean this high tension wire or replace the EHT ( CAUTION : BE AWARE OF HIGH VOLTAGES )

2.
The screen only shows a bright, thin line. Reply: The vertical Drive section of the monitor is faulty.

Unfortunately the LCD is going faulty.. one or more of the "Driver" transistors that operates the LCD elements RGB, have faulted ON.. perhaps this link may help fix it. Otherwise :(
http://www.wikihow.com/Fix-a-Stuck-Pixel-on-an-LCD-Monitor